One of the most important factors in choosing your Helium Miner Antenna is the gain. The gain of an antenna is directly affected by the height. The RFMAX ROSA-902-8-SNF is 65 inches long, and thus is able to produce a TRUE omni-directional gain of 8 dBi which provides greater coverage laterally. Additionally, this antenna is high quality, durable, outdoor tested and features a drain hole so you can use it outdoors with no worries. You can see the omni-directional field pattern shown in the charts below:
The issue with using other antennas, such as Rokland or HNtenna, for a Helium Network is that they do not provide enough gain. These antennas are listed at 24 inches long, but there is NO WAY to produce 8 dBi of gain in an antenna package that is less than 24 inches long. The maximum gain in an antenna that size would be 5 dBi.